Failure Investigation of Direct Write Pen Tips
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Scanning electron microscopy of direct write pen tips provided fractographic evidence that pen tip failure was due to impact fracture. It is recommended that safeguards be implemented into the direct write system that will prevent impact between the pen tips and the print media.
KeywordsSEM Impact Ceramics Micro failure analysis Alumina Scanning electron microscope
The research presented here was performed through the W.M. Keck Center for 3D Innovation at The University of Texas at El Paso (UTEP). This research was supported through the NSF under grant number HRD-0929727 and the Mr. and Mrs. MacIntosh Murchison Chair I in Engineering.